Publications
Detailed Information
Raman Spectroscopy Study on the Graphene Induced Surface Reconstruction : 그래핀에 의해 유도된 표면 재구성에 대한 라만 분광 연구
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 홍병희 | - |
dc.contributor.author | Jin Hyoun Kang | - |
dc.date.accessioned | 2017-07-27T02:20:09Z | - |
dc.date.available | 2018-01-23 | - |
dc.date.issued | 2015-08 | - |
dc.identifier.other | 000000067325 | - |
dc.identifier.uri | https://hdl.handle.net/10371/134925 | - |
dc.description | 학위논문 (석사)-- 서울대학교 대학원 : 화학부 물리화학전공, 2015. 8. 홍병희. | - |
dc.description.abstract | The surface morphology of copper (Cu) often changes during graphene synthesis by chemical vapor deposition (CVD) | - |
dc.description.abstract | the change is attributed to the thermal expansion coefficient mismatch between graphene and Cu. However, the obvious relationship between the reconstructed Cu surface and graphene is not totally understood yet. Here we synthesized graphene with different layer numbers using a CVD system by controlling the gas flow and time. Atomic force microscopy (AFM) images and the Raman G and 2D peaks show that Cu step edges became noticeably broader with increasing graphene layer number. Furthermore, ?ω_G??ω_2D plot indicates that the biaxial compressive strain on monolayer graphene was higher than that on bi/trilayer graphene, which agrees overall with topographic AFM images. Our results suggest that stress relaxation from the less strained bi/trilayer graphene crucially affects Cu surface reconstruction. | - |
dc.description.tableofcontents | Contents
Abstract 1 Contents 2-3 List of Figures 4-6 List of Tables and Schemes 7 Chapter 1. Introduction 1.1 Brief Introduction of Graphene 9 1.2 Synthesis of Graphene 14 1.3 Interaction between graphene and substrate. 17 1.4 Raman Spectroscopy in Graphene 19 1.4.1 Characterizing the number of layers 1.4.2 Estimation of Charge Doping on Graphene 1.4.3. Estimation of Strain on Graphene Chapter 2. Synthesis of Graphene on Cu Foil and Morphology Evolution 2.1 Synthesis of Graphene on Cu Foil 29 2.2 Morphology Change of the Cu Surface 32 2.3 Atomic Force Microscopy 35 2.4 Discussion 38 Chapter 3. Raman Spectroscopy Study 3.1 Characterizing the number of layers of graphene 42 3.2 Strain estimation via peak shift 50 3.3 Estimation of charge doping on graphene 55 3.4 Separation of the strain from charge doping effect 61 3.5 Conclusion 64 | - |
dc.format | application/pdf | - |
dc.format.extent | 5454873 bytes | - |
dc.format.medium | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | 서울대학교 대학원 | - |
dc.subject | Graphene | - |
dc.subject | Surface reconstruction | - |
dc.subject | Atomic force microscopy | - |
dc.subject | Raman spectroscopy | - |
dc.subject.ddc | 540 | - |
dc.title | Raman Spectroscopy Study on the Graphene Induced Surface Reconstruction | - |
dc.title.alternative | 그래핀에 의해 유도된 표면 재구성에 대한 라만 분광 연구 | - |
dc.type | Thesis | - |
dc.contributor.AlternativeAuthor | 강진현 | - |
dc.description.degree | Master | - |
dc.citation.pages | 76 | - |
dc.contributor.affiliation | 자연과학대학 화학부 | - |
dc.date.awarded | 2015-08 | - |
- Appears in Collections:
- Files in This Item:
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.